Folding air-pump.



. GOODMAN.

Y FOLDING AIR PUMP.

APPLICATION FILED NOV. 23. 1916 :15241,959. .Panted oct. 2,1917.

2 SHlEETS-rSHEET l.

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FOLDING AIR PUMP.'

APPLICATION FILED NOV. 23. |916.

Patented Oct. 2, 1917.

2 SHEETS-SHEET 2.

'BEN'.NIE GGODMAN, 0F MILLICAN, OREGON.

' FOLDING AIR-PUMQP.'

To all whom z't may concern."

Be i known that I, BENNIE GOODMAN, a

citizen of the United States, residing at Mil-l lican, in the county of Crook and State of Oregon, have invented certain new and use# ful Improvements in Folding Air-Pumps;

" and I do declare the following to be a. full,

clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains tomake and use the v Same.

' My invention has reference to air pumps in general and more particularly to 4those designed 'primarily for inflating automobile tire The object of the invention is to provide a simply constructed and inexpensive pump and in which:

which constitute a of this class which may be compactly folded for carrying "in the vehicle body and set up for use with little trouble.

y With this'general object in view, the in-4 vention resides in certain' novel features of construction and in uni ue combinations of parts -to be hereinafter lly described and claimed,-the 'descriptive matter being supplemented by the accompanying, "drawings A part of this application Figure 1 is a side elevation of a 'pump constructed in accordance with the invention;

Fig. 2 is a top plan view thereof;

Fig. 3 is an end elevation; v Fig. 4 is a vertical longitudinal section o the plane of the line t-ft of Fig. 3.

Fig. 5 is a top plan view of the pump folded position;

Fig. 6 is a detail sectional view through the bearing at the top of the bracing rod.

In specifically describing the structure shown in lthe drawings abovebriefly described, similar characters will be employed to designate corresponding parts throughout the several views and reference will be herein made to the numerous elements by numeral 1 designates a 'flat rectangular elongated base plate to one end of which a pair of pump cylinders 2 are pivoted as indicated at 3. v

The usual pistons 3 are disposed the cylinders 2 and are secured to the inner ends of the pump rods 4, the outer ends of said rods being pivoted vto the outer ends of a `pair of crank arms 5 which project in opl Specication of Letters Patent.

' and the other end of said brace'is hinged at I13 and both cylinders 2 are then moved Patented Olct. 2, 1917. p

' Appneauonsieamveniber 2s, 191e. seriallvo. 133,021).v

u posite directions from a shaft 6. `One of the arms 5 is rigidly secured to its respective end of the shaft'6 while the other is held on the other end of said shaft by means of a pin 7, removal of said pin permitting the two handles Ato extend in the same direction from the shaft 6 when the device is folded as depicted in Fig. 5. The outer ends of the crank arms 5 are equipped with handles 8 which arepreferably -pivoted at 9 so as to permit them to fold compactly toward the arms 5. l' p The shaft 6 isv rotatably mounted in a bearing l0 caryied by the upper end of av standard 1 1 preferably 1 formed yof channel iron or steel the lower end of said standard being hinged at 12 to the base 1 between the pivots 3.- An inclined brace 13 is pivoted at one end to the standard 11 as shown at 14 15 to a flat rectangular foot plate 16 which rests on the base 1 either when the pump is in use or when said pump is folded for carrying within the machine or storage in any compact space.

y T e two pump cylinders Zmay be provided with any suitable means for conduct-l ing compressed air therefrom to the vehicle tires or to other points at which it is to be utilized, lbut two separate tubes 17 preferably lead from the lower ends of said cylin- 'ders to a coupling 18 by means o f which they are connected to a common delivery'tube 19, which tube may be provided on its end with any preferred means for attaching it to the valve of a tire.4

When the improved pump' is 'not in use, the foot plate 16 is folded under the brace Adownwardly until they overlie the base. Previous to this operation, however, the handles 8 are folded and the cranks 5 are brought into close relation by removing the pin 7 With the numerous parts folded in this compact manner, the entire device may be housed within a rectangular metal box not shown.

When the pump is to be used, it' is set up as shown in Fig. 1 and the operator will then place one or both feet on the foot plate 16 to hold the brace 13 in operative posltion to cause .the latter to prevent vibrationof the standard 11. Rotation of the cranks 5 by means of the handles 8 will now recipro- 110 be carried in little space and if desired may l cate vthe rods 4 to cause the pistons 3 to compress air in the lower ends of the cyl. inders 2, vsaid. pistons discharging such air into the tire or other container in which it is `being, forced. Due to th'e fact' that the rods l are pivoted to the cranks 5, they must necessarily oscillate as well as reciprocate, this movement being permitted by thepivots 3 ofthe cylinders 2, which pivots allow said cylinders' to oscillate as the cranks are rotated. y

From the foregoing taken in connection with the accompanying drawings, it will be lseen that although the-improved device is extremely simple and may be marketed at a minimum price, it will be highly efcient and durable. For these reasons, the construction shown and described constitutes` the preferred form of the device but it is to be understood thatv within the scope of the invention as claimed, numerous changes may be made without sacricing they principal advantages thereof.

weisse p ll claim:

1. In combination a base, a pump pivotallymounted on said base for downward folding, means for operating said pump, a standard upon which said operating means are mounted, said standard beinghmged to said base for downward folding, a brace pivoted to said standard for holding the same in upright position and asfoot plate carried by the lower end of said brace and adapted to be held 'against the upper side of the base bythe operators foot.

2. A. structure as specified in claim 1, said foot plate being pivoted to said brace yto permit compact folding thereof.

Iii testimony whereof l have-hereunto `set my hand'in the presence of two subscribing witnesses.

BENNlE GOODMAN.

Witnesses: I y

DORA A. JOHNSON, p VLALMA 

